Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
The RoleServiceManager object that is returned by this property represents the role service that is registered with the page.
You can use the ASP.NET role service or use a custom role service. To use a custom service, you can register it by including a RoleService element inside the ScriptManagerProxy element on the page. You can also programmatically configure the RoleServiceManager object.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.